delphinelilly2846
27.02.2021 •
Chemistry
I need help wit number 7 and 8
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Ответ:
Answer is: the electrons are embedded in the positive charge.
J. J. Thomson discovered the electron in 1897.
Thomson suggested "plum pudding" model in 1904.
According to the Bohr model of the atom:
1. Electrons orbit the nucleus in orbits that have a set size and energy.
2. Energy levels of electrons are discrete (certain discrete values of energy).
3. Electrons can jump from one energy level to another, absorbing or emitting electromagnetic radiation with a frequency ν (energy difference of the levels).